Emanuel major



(No Model.) 7 H E. MAJOR.

REGULATOR FOR HOT WATER HEATING APPARATUS.

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UNITED STATES PATENT OFFICE.

EMANUEL MAJOR, OF ROCHESTER, NET/V YORK, ASSIGNOR OF ONE-FOURTH TO JOHN H. STEDMAN, OF SAME PLACE.

REGULATOR F OR HOT-WATER HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 407,784, dated July 30, 1889.

Application filed February 10, 1888. Serial No. 263,612. (No model.)

To aZZ whom it may concern: Be it known that I, EMANUEL MAJOR, residing at Rochester, Monroe county, New York, have invented a new and useful Improvement in Regulators for Heating and Refrigerating Apparatus, of which the following is a specification, reference being had to the accompanying drawings, in which Figurel is afront elevation of my improved IO regulator with a portion of the cover cut away to show the construction. Fig. 2 is an end view. Fig. 3 isarear view. Fig. 4 shows the manner of connecting my regulator to the draft-door of a hot-water apparatus boiler.

Fig. 5 shows the manner of connecting it to an indirect stack to regulate the supply of cold air in the same.

My invention consists, essentially, of a particular mechanism to open and close valves or dampers by means of the expansion and contraction of a metallic tube caused by changes in the temperature of a liquid, avapor, or a gas circulating through such tube, in combination with a device for limiting the motion of such valves under different conditions of temperature and with or without a device for indicating the temperature of the liquid, vapor, or gas circulating through such tube.

0 I illustrate my device and the operation thereof with reference to a hot-water heating apparatus.

A tube 2, Fig. 1, is connected to a riser from a hot-water heating apparatus by the coupling 14 and the elbow 13. The connection through the elbow 13 should be a pipe of sufficient length, as 33, Fig.5, so as to permit the free movement of the elbow 13 by the expansion and contraction of the tube 2 or it may be made by a flexible coupling, such as shown in Letters Patent No. 335,371, issued to me on the 2d day of February, 1886. The tube 2 is to be connected with the hot-water apparatus in such a manner that a free circulation may be had through it of hot water in its passage from the boiler through the system of pipes composing the apparatus.

The coupling 14is provided with the shoulders 10, to which are adj ustably secured the rod 9, by means of the jam-nuts 11. Similar shoulders 12 on the elbows 13 serve as guides to the rods which pass through them and which are fastened to the bosses 8 on the box 1. The elbow 13 has an arm 3, which slides in an opening in the edge of the box. This arm bears against a lever 4, Fig. 1 which lever is secured at one end to the box by apin 19, about which it is free to move. An adjustable wedge 5 is interposed between the lever 4 and the lifting-bar 6, one of its edges bear- 6o ing against the lever 4 and its opposite edge against the arm 41 of the lifting-bar 6. This bar is pivoted at 20 to the box, through an opening in the edge of which it projects. At its outer end is secured a chain 7, connecting with the damper which it is intended to operate, as shown in Figs. 4 and 5.

A suitable spring 42, Fig. 1, is secured by one end to the inside of the box, and its free end presses against the arm 41 of the bar 6, 7o maintaining constant contact between the 7 bar, wedgeflever, and arm 3.

The operation of the device is as follows: When the water circulating through the tube 2 increases in temperature, the said tube ex- 7 5 pands. Its outer end being rigidly connected with the box 1 by the rods, its longitudinal expansion moves the elbow l3 and arm 3 in the direction of the box, and the arm pushes against the lever 4, which in turn, through the interposed wedge 5, moves the bar 6 and lifts the chain 7-, closing the draft. When the temperature of the water decreases, the tube 2 contracts, the arm 3 withdraws from the lever 4, and the mechanism assumes its first position, opening the draft again. In the upper end of the lever4 is a pin 21,whicl1 projects through a slot in the back of the box. An indicator-arm 16 is pivoted to the back of the box. It has a pointer which moves along the scale 24 on the cover of the box. The pin 21 passes through a hole in the arm 16. The motion of the lever 4, communicated to this arm through the pin 21, causes the pointer to move along the scale 24. 5

As the expansion of the tube 2 is always the same with a given temperature, it will be seen that the positionof the pointer on the scale 24 will always indicate the temperature of the water in the tube 2.

For the purpose of adjusting the regulator to varying degrees of heat and cold, the Wedge tached to the chain 7.

'5 has a pin 22, Fig. 1, in its end, which pin passes through a slot 18 in the box. A lever 15, pivoted to the box at 23, is provided with a hole which engages this pin, and by means of which the wedge may be moved longitudinally between the lever and the lifting-bar 6. The movement of the wedge toward the lower end of the case so changes the relation of the parts that a given amount of movement in the arm 3 will not cause the lifting-arm 6 to move through so great an arc of a circle as when the parts are in the position shown in Fig. 1, and if the wedge be moved up so that its edges are near the fulcrum 20 of the bar 6 and the upper end of the bar 4 the same given amount of movement in the arm 3 will increase the motion of the bar 6.

The application of my regulator to the draft of a boiler is shown in Fig. 4. The draft or ash-pit door 37 and the flue-door 36 are connected by the chain 7, which passes over the pulley 39. The chain 7 is of such length that when either door is closed the other is open and the weight of one counterbalances the weight of the other. To the riser 26 and outside thereof is attached the regulator, in the manner already described. The bar 6 is at When the temperature of the water in the riser 26 reaches the point at which the regulator has been set to close the draft, the expansion of the tube 2 lifts the arm 6 and closes the draft-door 37 and at the same time opens the check-draft 36. As soon as the temperature of the wa ter circulating through the tube 2 begins to lower, the tube contracts, and the bar 6 moves downward, closing the check draft-door 37.

Fig. 5 shows the application of the device to a stack for indirect radiation. 28 is the stack of radiators inclosed in the box 44, which is secured to the floor 31. A register 32 admits the heated air to the apartment. Cold air is admitted to the stack through the box 30. My regulator is connected to the supply-pipe 26 of the stack and'the return 27. A damper 34 is pivoted on its center to the cold-air box 30. Attached to it is an arm 35, by which it is operated and which also serves as a weight to keep it closed. The regulator may be attached tothis arm 35 by a chain 7. The expansion of the regulator-tube by an increase of the temperature of the water circulating through the stack opens the damper 34 and admits a greater volume of cold air to the stack and consequently decreases the temperature of the air discharged into the apartment through the register 32. On the contrary, a decrease of the temperature of the water causes the regulator to close the damper 34, and by decreasing the column of cold air admitted to the stack to be heated increases the temperature of that air when discharged through the register 32.

It is evident that the above-described apparatus is applicable also to hot-air and steamheating apparatus and to any apparatus in which there is a circulation system and in which changes of temperature occur in the circulating liquid, vapor, or gas, and I claim all such applications thereof.

- Having thus described my invention, what I claim as new is 1. In a regulator for hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having-a circulation system, the combination of an expansiont-ube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against-the arm 3 and pivoted at one end to said box 1, a lifting-bar 6, provided with an arm 41, and also pivoted to said box, and a wedge 5, interposed between said lever 4 and the arm 41, substantially as' and for the purposes described.

2. In a regulator for hot-water, hot-air, or

steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansiontube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3 and pivoted at one end to said box 1, a lifting-bar 6, provided with an arm 41, and also pivoted to said box, a wedge 5, interposed between said lever 4 and the arm 41, and a regulator-arm 15, pivoted at one extremity to said box 1 and connected with the wedge 5 by a pivot, substantially as and for thepurposes described.

3. In a regulator for hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansiontube 2, inserted in the circulation system, an

elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other. end of said tube 2 by rods 9 9, a lever 4, abutting against thearm 3 and pivoted at one end to said box 1, a liftingbar 6, provided with an arm 41,and also pivoted to said box, a wedge 5, interposed between said lever 4 and the arm 41, and an indicator-arm 16, pivoted to the box 1 and to the free end of the lever 4, substantially as and for the purposes described.

4. In a regulator for hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansiontube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1 rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3' IIO pivot, and an indicator-arm 16, pivoted to the box 1 and to the free end of the lever 4, substantially as and for the purposes described.

5. In a regulator for hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansiontube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3 and pivoted at one end to said box 1, an indicator-arm 16, pivoted to the box 1 and to the free end of the lever 4, and a scale 24, substantially as and for the purposes described.

6. In a hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having acirculation system, the combination of an expansion-tube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3 and pivoted at one end to said box 1, a lifting-bar 6,pro'- vided with an arm 41, and also pivoted to said box, a wedge 5, interposed between said lever 4 and the arm 41, and a chain or rope 7, attached to the free end of the lifting-bar 6, the end of said chain or rope attached to the draft door 37 of the furnace, substantially as and for the purposes described.

7. In a hot-water, hotair, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansion-tube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3 and pivoted at one end to said box 1, a lifting-bar 6, provided with an arm 41, and also pivoted to said box, a wedge 5, interposed between said lever 4 and the arm 41, a regulator-arm 15, pivoted at one extremity to said box 1 and connected with the wedge 5 by a pivot, and a chain or rope 7, attached to the free end of the liftingbar 6, the end of said chain or rope attached to the draft-door 37 of the furnace, substantially as and for the purposes described.

3. In a hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the

combination of an expansion-tube 2,inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4,

abutting against the arm 3 and pivoted at one end to said box 1, alifting-bar 6, provided with an arm 41, and also pivoted to said box, awedge 5, interposed between said lever 4 and the arm 41, an indicator-arm 16, pivoted to the box 1 and to the free end of the lever 4, and a chain or rope 7, attached to the free end of the lifting-bar 6, the end of said chain or rope attached to the draft-door 37 of the furnace, substantially as and for the purposes described.

9. In a hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansion-tube 2, inserted in the circulation system, an elbow 13, connected to one end of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3 and pivoted at one end to said box 1, a lifting-bar 6, provided with an arm 41, and also pivoted to said box, a wedge 5, interposed between said lever 4 and the arm 41, and a chain or rope 7, attached to the free end of the lifting-bar 6 and to the weighted arm 35 of the damper 34 of the cold-air inlet 30, substantially as an d for the purposes described.

10. In a hot-water, hot-air, or steam heating apparatus, or in any heating or refrigerating apparatus having a circulation system, the combination of an expansion-tube 2, inserted in the circulation system, an elbow 13, connected to oneend of said tube and provided with an arm 3, a box 1, rigidly connected to the other end of said tube 2 by rods 9 9, a lever 4, abutting against the arm 3 and pivoted at one end to said box 1, a lifting-bar 6, provided with an arm 41, and also pivoted to said box, a wedge 5, interposed bet-ween said lever 4 and the arm 41, a regulator-arm 15, pivoted at one extremity to said box 1 and connected to the wedge 5 by a pivot, and a chain or rope 7, attached to the free end of the lifting-bar 6 and to the weighted arm 35 of the damper 34 of the cold-air inlet 30, substantially as and for the purposes described.

11. In an apparatus constructed and operating substantially as shown, the wedge 5, interposed between the lever 4 and the arm 41, of the lifting-bar 6, in combination with the indicator-arm 16, pivoted at one extremity to the box 1 and to the free end of the lever 4, substantially as and for the purposes described.

EMANUEL MAJOR.

\Vitnesses:

DAVID HoYT, FRANK B. BIsHoP. 

